A conducting loop having radius (20 mathrm{~cm}) is held fixed, and there is a magnetic flux of

Question:

A conducting loop having radius $20 \mathrm{~cm}$ is held fixed, and there is a magnetic flux of $0.6 \mathrm{~T} . \mathrm{m}^{2}$ through the loop. When the magnetic field is turned off, the magnetic flux through the loop becomes zero in $4 \mathrm{~s}$. What is the average magnitude of the induced emf in the loop during the $4.0 \mathrm{~s}$ time interval?

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